GATE Questions

Q:

If x = 2 + 223 + 213 then find the value of x3-6x2+6x ?

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: B) 2

Explanation:

Given that x = 2+ 223 + 213

 

So x - 2 = 223 + 213

 

Now cubing on both sides, we get

 

 

=> x3-8-6x2+12x = 4 + 2 + 6(x-2)

 

Therefore, x3-6x2+6x = -6 + 8 = 2

 

 

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Filed Under: Square Roots and Cube Roots
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11 3514
Q:

A person who believes in fate

A) Predestinarianist B) Determinist
C) Fatalist D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

A person who believes in fate is called as Fatalist or also called as Determinist or Predestinarianist.

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Filed Under: English
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1 3513
Q:

Which of the following is not a prime number?

A) 5 B) 11
C) 21 D) 37
 
Answer & Explanation Answer: C) 21

Explanation:

A prime number is a whole number greater than 1 whose only factors are 1 and itself.

 

Factors of 5 are 1, 5

Factors of 11 are 1, 11

Factors of 21 are 1, 3, 7, 21

Factors of 37 are 1, 37.

 

Hence, according to the definition of a prime number, 21 is not a prime number as it has more than two factors.

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Filed Under: Numbers
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6 3511
Q:

Amino acids can be distinguished from one another by

A) type of bond between the R group and the rest of the molecule B) the number of R groups found on the amino acid molecules
C) the chemical properties of their R groups D) the chemical properties of the amino and carboxyl groups
 
Answer & Explanation Answer: C) the chemical properties of their R groups

Explanation:

Amino acids are organic compounds containing amine (-NH2) and carboxyl (-COOH) functional groups, along with a side chain (R group) specific to each amino acid.

 

Depending on the nature of the side chain groups, three classes of aminoacids can e distinguished:

1. Amino acids with H ond donor and acceptor groups.

Histidine, lysine, aspartic acid, threonine,...

2. Amino acids with donor grups only.

Arginine, tryptophan and cysteine.

3. Amino acids with acceptor groups only.

Asparagine and glutamine.

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Filed Under: Biology
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1 3510
Q:

Who gave the slogan Inquilab Zindabad?

A) Hasrat Mohani B) Ashfaqulla Khan
C) Bhagat Singh D) Chandrashekhar Azad
 
Answer & Explanation Answer: A) Hasrat Mohani

Explanation:

Inquilab Zindabad means "Long live the revolution!". The slogan Inquilab Zindabad was given by Hasrat Mohani.

 

                                        who_gave_the_slogan_inquilab_zindabad1556950189.png image

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Filed Under: Indian History
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2 3509
Q:

Which tennis player has won the Grand Slam title in men's singles 2019?

A) Rafael Nadal B) Roger Federer
C) Novak DJokovic D) Daniil Medvedev
 
Answer & Explanation Answer: A) Rafael Nadal

Explanation:

Rafael Nadal defeated Daniil Medvedev in the men's singles title at the 2019 US Open. It was Nadal's 19th Grand Slam singles title, and fourth US Open title.

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38 3508
Q:

The process of collecting, organizing and analyzing data is called

A) Statistics B) Data collection
C) Probability D) Systematic evaluation
 
Answer & Explanation Answer: A) Statistics

Explanation:

The process of collecting, organizing and analyzing data is called Statistics.

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0 3507
Q:

Which of the following is not true about listening?

A) It involves conscious psychological action. B) Attention and meaning given to sounds turns hearing in to listening.
C) It is a passive, constant process. D) It is an active and selective process.
 
Answer & Explanation Answer: C) It is a passive, constant process.

Explanation:
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Filed Under: English
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2 3507